Road-scraper.



J. M; BOBBY. ROAD SGRAPER.

93,8. v APPLIOATION fum) 11.15, 1908. Patente-d Dec. 29, 1908" 2 SHEETS-SHEET 1.

g l ll u. M. BOBBY.

non soBAPEB. Armourolr 21mm 1211.15, laos.

UNITED STATES TTEN T OFFICE.

romy poner," orffrnviEwELL, iLLINors.

ROAD-SCRAPER.

specincauon fy Letters rement.

Patented Dec. 29, 190s.

` g Application filed April 15, 1908. Serial No..127,280.

i struction which admits of the line of draft being readily adjusted with respect to the inclination of thescraping blade so as to enable the scraper to be effectively employed for various purposes.

The object of the invention is'the provision of a road scraper of this character which is simple and durable in its construction and in which the various parts can be quickly adjusted as required and securely locked in'.

an adjusted position.` f Y vFor a full understanding of the invention land the merits thereof and also to acquirea knowledge of the details of construction and the means for effecting the result, reference is to be had to the following description and accompanying drawings, in which:

Figure 1 is a perspective view of a road scraper embodying the invention., Fig. 2 is a sectional view through the same on the line 2 2 of Fig. 1. Fig. 3 is a corner view of the scraper. Fig. 4 is a plan view, the draft cable being properly positioned for moving the scraper in the direction of its/longitudinal axis. Fig. 5 is a similar view with the draft cable properly positioned for moving the scraper in the direction 'of its transverse axis. Fig. 6 is a similar view with the draft cable properly positioned so .that the line of draft is isposed at right angles to the scraping blade. i

Corresponding and like parts are referred to in the following description and indicated in all the views of the drawings by the same reference characters.

The frame of the road scraper has an ap-V proximately rectangularformation and comprises the paralleland oppositely disposed.

sides 1 and 2 having their extremities extended inwardly and secured to the ends 3 and 4, the end 3 being located at the front of the frame and the end 4 at the rear of the frame.A Extending across the top of the frame is a pair of longitudinal bars 5 which are located adjacent the respective sides,1

and 2 and have their extremitiesisecured to the ends 3 and 4 of the frame. In a somewhatsiinilar manner transverse bars 6 extend across the top ofthe frame at the front and rear thereof and are secured to the lonextended downwardly and secured to the sides 1 and 2. A diagonally disposed scrap-` ing blade 7 is pivoted between the sides 1 and 2'so as to swing about a horizontal axis, the rear end of the blade extending beyond the sides ofthe frame and being formed with a wing 8 which serves to deflect the material device. A scraping edge 9 is bolted or otherwise detachably applied to the scraping blade 7 so as to be readily replaced should it become worn. In the present instance the scraping blade is shown as provided toward its opposite ends with pintles 10' passing ward portion of the sidev 1 and the rear por- '.being vout away at 7a to form a clearance for the movements ofthe blade. Projecting upwardly from the 'middle portion of the scraping blade 7 is a lever 11 which is loosely re; ceived between a pair of plates 12 secured to the top of the frame and diagonally disposed with respect thereto. These plates 12 have corresponding openings 13- formed therein and a pin 14 is designed to be placed within any selected ypair of the openings to lock the scraping blade at the desired inclination.

' The invention also contemplates novel means for applying the draft to the frame in suoha manner that the line of draft can be readilyadjuste'd with respect to the angle of the scraping blade. A pair of draft hooks 15 project forwardly from opposite sides of the front 3 of the frame and these draft hooks cooperate with a flexible cable or chain 16 having one end thereof secured at 17 to one of the rear corners of the frame at the intersecf tion of the side 1 and end 4, while the opposite end is secured at 1 8 to an intermediate point in the length of the opposite side 2. The draft is applied to the chain 16 through the 195L therein; the'said plate having an interlocking connection with the chain when the latter member is drawn into the contracted moved longitudinally upon the chain when thesaid chain is moved into the enlarged end the draft to thel front end of the frame as gitudinal. bars 5 and have their extremities.

gathered by the scraper to one side of the` loosely throughl pivot openings in the for,-l

tion of theside 2 respectively, the said sldes/ lever 11 in an adjusted position and hold the Y medium of a plate 19 having a key hole slot'.

of thefslot. Should it be desired to apply` end ofthe slot 179a and'being adapted to be when the device is to be employed for cleaning out a ditch, the draft cable or chain is drawn along the opposite sides 1 and 2 of the frame and caused to engage the draft. hooks 15. The plate 19 can then be adjusted to an intermediate point upon that portion of the chain between the draft hooks 15 so that the line of draft will conicide with the longitudinal aXis of the frame. However, should it be desired to utilize the device as a road scraper for dcflecting dirt to the center of the road the draft will be applied to one side thereof, the chain 16 being drawn along the side 2 and across the front 3 and the plate 19 adjusted to an intermediate point upon that portion of the chain adjacent the side 1 so that the line of draft will coincide with the minor or transverse aXis of the frame. In either instance it will be obvious that the inclination of the scraping blade may be varied as requiredv according to the nature of the soil or the depth to which it is desired to loosen the soil.

Provision is also made for using the device as a drag for smoothing the surface of the road and when thus employed the cable or chain 16 is drawn along the side 1 and caused to engage the draft hool; 15 adjacent the said side 1. It will be observed however that the chain is disengaged from the opposite draft hook` and that the plate 19 is moved to an intermediate point upon that portion of the chain between the draft hook 15 with which it is engaged and the point 18 at which it is connected to the side 2. The line of draft is then at approximately right angles to the scraping blade and the lever 11 can be swung forwardlyY so that the blade will be inclined rearwardly and operate to smooth the surface of the road. The seat 20 is carried by a springV bar 21 having the lower end thereof pivotally connected to one of the transverse bars 6 at the top of the frame so that the seat can be swung about a vertical aXis and adjusted as required by the manner of applying the draft.

From the foregoing description it will be obvious that the improved road scraper is susceptible of being employed for a wide range of usage owing to the f'act that the angle between the line of draft and the road scraper can be varied and the scraping blade can be locked at any desired inclination.

Having thus described the invention, what is claimed as new is:

1. In a device of the character described, the combination of a frame, a scraping blade mounted upon the frame, draft members carried by the frame, and a cable having the extremities thereof connected to the frame, the said cable beingdesigned to detachably engage the draft members topermit adjustment of the line of draft with respect to the scraping blade.

2.' In a device of the character described, the combination of a frame, a scraping blade mounted upon the frame, a pair of draft members projecting from the front of the frame, and a cable having one end thereof secured to one of the rear corners of the frame while the opposite end is secured to an intermediate point of the opposite side of the. frame, the said cable detachably engaging the draft members to permit the line of draft to be adjusted with respect to the scraping blade.

3. In a device ofthe character described, the combination of a frame, a diagonal scraping blade mounted upon the frame, means for adjusting the inclination of the scraping blade, draft members carried by the frame, and a cable having the extremities thereof connected to the frame, the said cable being designed to detachably engage the draft members to permit adjustment of the line of draft with respect to the scraping blade.

4. In a device of the character described, the combination of a rectangular frame, a. diagonally disposed scraping blade mounted upon the frame, a cable having the extremities thereof permanently connected to the frame, and draft members carried by the frame, the said draft members being dcsigned to detachably engage the cable to permit of the draft being applied either to a side or an end of the frame.

5. In a device of the character described, the combination of a frame formed with spaced sides, a diagonal scraping blade jonrnaled between the sides so as to swing about a horizontal axis, the sides being cut away to provide a clearance for the blade, a lever projecting upwardly from the scraping blade, plates securedv to the frame and cooperating with the lever to hohl the scraping li lade in an adjusted position, and means for applying draft to the frame.

6. In a device of the character described, the combination of a frame, a diagonal scraping blade pivotally mounted upon the frame, a lever projecting upwardly from the scraping blade, means carried by the, frame and cooperating with the lever to lock they scraping blade 1n. an adjusted position, draft members projecting from the frame, and a cable having opposite ends thereof secured to the frame and cor'perating with the draft members to permit of the direction of the line of draft being adjusted with respect to the scraping blade.

In testimony whereof I affix my signature in presence of two witnesses.

JoHN M. noem. a, s]

Yvlfitnesses G. W. GREEN, DENNIS F. CnoNrN.

Il (l 

